chapter 43 The Red Dust Practices Killing Heart

"Sir! Sir!"
Dr. Gareth, who was following Delfina, ​​quickly caught up. The old man, over sixty years old, started running, somewhat out of breath.
Delfina stopped, looked at him, and said calmly, "Watch carefully, I will only demonstrate it three times."
As soon as he finished speaking, Delfina's slender hands began to shake rapidly.
Gareth quickly opened his eyes, trying to imprint Delfina's technique in his mind.
The three times passed quickly, and Gareth's dim old eyes were...